Window and door screen



(ModeL) D. H. METOALP. Window and Door Screen. No. 241,688. Patented May17,1881.

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7 faces of the pins UNITE STATES PATENT OFFICE.

.wmoow AND DOORSC'REEN.

SPECIFICATION, forming part of Letters Patent No. 241,688,

* Application filed annary 2, 1880.

To all whom it may concern:

Be it known that 1-,Dnvrn H. METGALF, of Battle Creek, in the county ofCalhoun and State of Michigan, have invented certain new and usefulImprovements in Window and Door Screens; and I do hereby declare thatthe following is a full, clear, and exact description of the same,reference being had to the accompanying drawings, in which- Figure 1 isan outside elevation of a window-screen embodying my improvements. Fig.2 is a vertical sectional view of the same; and Fig. 3 is a horizontalsectional view through one of the side bars, showing the manner ofconnecting the wire-cloth thereto. Fig. 4 is a horizontal sectional viewon line :10 w in Fig. 1, and Fig. 5 is an end view of the corner.

This invention has relation to window and door screens; and it consistsof the improved features of construction and combination hereinafterfully described,and particularly pointed out in the claims.

Referring by letter to the accompanying drawings, A designates thewire-cloth with which the screen-frame is covered.

B designates the top bar, and B the bottom bar or rail, of thescreen-frame proper; and ff, the vertical side bars of the same.

0 Otdesignate vertical auxiliary or extension side bars, secured topinscl at working in recesses cl in the ends of the top and bottom bars, BB. The bars (3 O are secured to the d, and come about flush with theoutside of the frame proper.

In constructing the side bars, ff, their lower ends are kerfed aboutmidway longitudinally and from edge to edge, as at g, Figs. 4 and 5,first rabbeted at their ends to receive the tenons on the top and bottombars, B B, and then a block, g, cut off, the cross-cut being made at theupper termination of the kerf, as at g Fig. 1, and the block secured inthe space it formerly occupied by a nail until the frame is puttogether, when the nail will be unnecessary, although it may remain. Thepurpose of the blocks g will be hereinafter explained.

A top rail, h, is pivoted at its center to the upper bar, B, by a pivotor screw, i, and is provided on one edge with a flexible cushion, b, ofrubber or the like. i

The pins (1 are provided with suitable stops,

dated May 17, 1881.

being forced entireand they are oper-. which keep the bars which preventthem from ly out of their recesses 61, ated by springs d normallyextended.

The rear faces of the bars B B arewgrooved at c, and tongues c areemployed to fasten the wire-cloth A to them and bring it flush with theoutside of the frame. The rear faces of the bars f f are rabbeted, asseen in Fig. 3,and an L-shaped molding, e, is employed to bind the edgesof the cloth A to the side bars, ff.

Near the upper edge of the wire-cloth Aare perforations a a, made eitherby being woven in the fabric or by being punched with any suitableinstrument.

On the inside of the frame, and pivoted to the side bars, f f, directlybeneath the top bar, B, is a damper, b, for opening and closing theapertures a a.

The extension-bars (J U are notncw in this connection, but are employedto cause the screen-frame to lit snugL The top rail, It, should be madeas long asthe frame with the extensions expanded, andmay be cut off whenthe frame is adjusted to the window, it necessary. The cushion 1) fitssnugly against the sash, or the glass and sash where the window is onlypartially raised. The top rail may be turned on its pivot to bring thecushion either on theinside or the outside of the screen-frame,

so that the screen may be used equally as well a.

on the outside as on the inside, where necessary or desirable.

In day-time the damper is left open, and the insects in the room willnaturally seek the light, and will find the outlets a a and escape. Atnight the damper is closed to preventthe entrance of insects. The clothis made flush with the outside of the frame,in order that there may beno shadow thrown from the outside over the outlets on, which woulddarken them and lessen their usefulness.

The blocks 9 are intended to be used only when it is necessary toshorten the screen-' frame, and as this cannot always be readily donewith the appliances at command they are of some importance. be loosenedfrom its connections and the blocks 9 entirely removed, if necessary, orcut off a proper distance and the remaining portion replaced. Thewire-cloth is also cut off and a new tenon formed, the other parts he-The lower bar-g B ,should ing reduced accordingly. Thereby the cost ofprovided with the removable blocks 9, suba new screen is saved.stantially as and for the purposes set forth.

Having thus fully described my invention, 3. In a WindoW-screen,thewire-cloth A, prowhat I claim as new, and desire to secure by vided nearits upper edge with the series of I 5 5 Letters Patent of the UnitedStates, is outlets a, in combination with the damper b,

1. In a window-screen, the pivoted reversi- I substantially as and forthe purposes set forth. hle top rail It provided with the flexiblecushion b, in combination with the top bar, B, of l METOALF' thescreen-frame, substantially as and for the I Witnesses:

1o purposes set forth. N. O. METGALF,

2. In a WiIIdOWSGI'BGII, the side bars,ff, ELI BARNES.

